Due to the small size of most SMD components, manufacturers are not able to write
the full part number on the case. They use instead a marking code typically
composed of a combination of 2 or 3 letters or digits. When repairing an unknown
electronic board, it becomes so difficult to know what is the exact type of a given
component. This database allows to quickly find the part number of a SMD component
when you have only the marking code.
Showing codes starting with 'WI'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
WI
SMZG3793A
Vishay Semiconductor
DO-215AA
DO-215AA
Zener diode
15V±5%, 85mA, Zzt=9, 1.5W
15V±5%, 85mA, Zzt=9, 1.5W
WI
BZT52B12
PanJIT Semiconductor
SOD-123
SOD-123
Zener diode
12V±2%, Izt=5mA, Zzt=20, 410mW
12V±2%, Izt=5mA, Zzt=20, 410mW
WI
BZT52C12
Won-Top Electronics
SOD-123
SOD-123
Zener diode
12V±5%, Izt=5mA, Zzt=25, 410mW
12V±5%, Izt=5mA, Zzt=25, 410mW
WI
BZT52C12-V
Vishay Semiconductor
SOD-123
SOD-123
Zener diode
12V±5%, Izt=5mA, Zzt=25, 500mW
12V±5%, Izt=5mA, Zzt=25, 500mW
WI
BZT52C13
Diodes
SOD-123
SOD-123
Zener diode
13V±5%, Izt=5mA, Zzt=30, 500mW
13V±5%, Izt=5mA, Zzt=30, 500mW
WI
BZT52C13
Diodes
SOD-123
SOD-123
Zener diode
13V±5%, Izt=5mA, Zzt=30, 500mW
13V±5%, Izt=5mA, Zzt=30, 500mW
WI
BZT52C13-G
Taiwan Semiconductor Company
SOD-123
SOD-123
Zener diode
12.35..13.65V, Izt=5mA, Zzt=30, 350mW
12.35..13.65V, Izt=5mA, Zzt=30, 350mW
WI
LBZT52C13T1G
Leshan Radio Company
SOD-123
SOD-123
Zener diode
12.4..14.1V, Izt=5mA, 500mW
12.4..14.1V, Izt=5mA, 500mW
WI
BZT52-C12S
PanJIT Semiconductor
SOD-323
SOD-323
Zener diode
12V±5%, Izt=5mA, Zzt=25, 200mW
12V±5%, Izt=5mA, Zzt=25, 200mW
WI
BZT52B12S
Micro Commercial Components
SOD-323
SOD-323
Zener diode
11.76..12.24V, Izt=5mA, Zzt=25, 200mW
11.76..12.24V, Izt=5mA, Zzt=25, 200mW
WI
BZT52C13S
Diodes
SOD-323
SOD-323
Zener diode
13V±5%, Izt=5mA, Zzt=30, 200mW
13V±5%, Izt=5mA, Zzt=30, 200mW
WI
BZT52C13S
Diodes
SOD-323
SOD-323
Zener diode
13V±5%, Izt=5mA, Zzt=30, 200mW
13V±5%, Izt=5mA, Zzt=30, 200mW
WI
BZX384C12-V
Vishay Semiconductor
SOD-323
SOD-323
Zener diode
12V±5%, Izt=5mA, Zzt=10, 200mW
12V±5%, Izt=5mA, Zzt=10, 200mW
WI
MEZ02-12-D3
Matsuki Electronic Company
SOD-323
SOD-323
Zener diode
11.40..12.60V, Izt=5mA, Zzt=20, 200mW
11.40..12.60V, Izt=5mA, Zzt=20, 200mW
WI
MM3Z13V
Secos
SOD-323
SOD-323
Zener diode
12.4..14.1V, Izt=5mA, Zzt=30, 200mW
12.4..14.1V, Izt=5mA, Zzt=30, 200mW
WI
BZT52C12-F
TAITRON Components
SOD-123F
SOD-123F
Zener diode
11.4..12.7V, Izt=5mA, 410mW
11.4..12.7V, Izt=5mA, 410mW
WI
BZT52C12WS
TAITRON Components
SOD-323F
SOD-323F
Zener diode
11.40..12.60V, Izt=5.0mA, 200mW
11.40..12.60V, Izt=5.0mA, 200mW
WI
BZX384C12-F
TAITRON Components
SOD-323F
SOD-323F
Zener diode
11.4..12.7V, Izt=5.0mA, 200mW
11.4..12.7V, Izt=5.0mA, 200mW
WI
BZT52C12WT
TAITRON Components
SOD-523
SOD-523
Zener diode
11.40..12.60V, Izt=5mA, Zzt=25, 200mW
11.40..12.60V, Izt=5mA, Zzt=25, 200mW
WI
BZT52C13T
Diodes
SOD-523
SOD-523
Zener diode
13V±5%, Izt=5mA, Zzt=30, 150mW
13V±5%, Izt=5mA, Zzt=30, 150mW
WI
BZX584C12
PanJIT Semiconductor
SOD-523
SOD-523
Zener diode
11.4..12.7V, Izt=5mA, Zzt=25, 200mW
11.4..12.7V, Izt=5mA, Zzt=25, 200mW
WI
BZT52C12WU
TAITRON Components
SOD-723
SOD-723
Zener diode
11.40..12.60V, Izt=5mA, Zzt=25, 200mW
11.40..12.60V, Izt=5mA, Zzt=25, 200mW
WI
BZX784C12
PanJIT Semiconductor
SOD-723
SOD-723
Zener diode
11.40..12.60V, Zzt=25, Izt=5mA, 200mW
11.40..12.60V, Zzt=25, Izt=5mA, 200mW
WI
SMZJ3793A
Vishay Semiconductor
DO-214AA
DO-214AA
Zener diode
15V±5%, 85mA, Zzt=9, 1.5W
15V±5%, 85mA, Zzt=9, 1.5W
WI
P4SMA120C
Fagor Electronica
DO-214AC
DO-214AC
Transient voltage supressor
Vbr=114..126V, Vrwm=102V, 2.5A, 400W(1ms), Bidir.
Vbr=114..126V, Vrwm=102V, 2.5A, 400W(1ms), Bidir.
WI
BZX84B12
PanJIT Semiconductor
SOT-23
SOT-23
Zener diode
11.76..12.24V, Zzt=25, Izt=5mA, 410mW
11.76..12.24V, Zzt=25, Izt=5mA, 410mW
WI
BZX84C12
Won-Top Electronics
SOT-23
SOT-23
Zener diode
11.4..12.7V, Zzt=25, Izt=5mA, 350mW
11.4..12.7V, Zzt=25, Izt=5mA, 350mW
WI
BZX84C12W
Won-Top Electronics
SOT-323
SOT-323
Zener diode
11.4..12.7V, Zzt=25, Izt=5mA, 200mW
11.4..12.7V, Zzt=25, Izt=5mA, 200mW
WI
TZTC12WS
TAITRON Components
SOT-323
SOT-323
Zener diode
11.40..12.60V, Izt=5mA, Zzt=25, 200mW
11.40..12.60V, Izt=5mA, Zzt=25, 200mW
WI
BCR158L3
Infineon Technologies
TSLP-3
TSLP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 170MHz
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 170MHz
WI
PT7M6314US47D3
Pericom Technology
SOT-143
SOT-143
Voltage detector IC
4.7V±1.5%, 200ms, -Reset PPO, -MR
4.7V±1.5%, 200ms, -Reset PPO, -MR
WI
BZX84C12TW
PanJIT Semiconductor
SOT-363
SOT-363
Zener diode
Triple, 11.76..12.24V, Zzt=25, Izt=5mA, 200mW
Triple, 11.76..12.24V, Zzt=25, Izt=5mA, 200mW
WI-
3SK197
Renessas
SOT-143
SOT-143
MOSFET n-type
Dual gate, VHF-TV-tuner, 12V, 35mA, Idss=10mA, Up<1V
Dual gate, VHF-TV-tuner, 12V, 35mA, Idss=10mA, Up<1V
WIs
BCR158
Infineon Technologies
SOT-23
SOT-23
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=2.2k/47k, 200MHz
Sw, 50V, 100mA, 200mW, R1/R2=2.2k/47k, 200MHz
WIs
BCR158W
Infineon Technologies
SOT-323
SOT-323
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 200MHz
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 200MHz
WIs
BCR158T
Infineon Technologies
SOT-416
SOT-416
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 170MHz
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 170MHz
WIs
BCR158F
Infineon Technologies
TSFP-3
TSFP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 170MHz
Sw, 50V, 100mA, 250mW, R1/R2=2.2k/47k, 170MHz
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